Turboomni.

In the past I did remark that the old system is mixture adjustment, when looking the way it works.
Mostly a reason for me was that using control it isn’t really the right description.

Now you show me why, because your system is really a mixture control, no adjustment.
I think about the system it is good In a heli, in normal level flight and a nearly constant position of tank versus engine and power range.

When the level of the fuel in the tank lowers the temp will rise and richen the mixture.

I think this system is designed this way because you really cannot measure the mixture in the crankcase only the effect of e lean mixture and that can be the temperature. (oxygen in the exhaust?, WEDJ do you have a sensor for that?)

In a plane I think it is better to control the pressure of the fuel near the inlet of the carb.
Look at my 61 FX, with pressure control on engine and tank.
The position of the plane and g-forces do not disturb the carb anymore, he “thinks” the tank with right and constant fuel level, is right along side him. You automatic have a constant mixture.

Temperatures I also measures and I know the temperature rises very fast when the mixture is too lean.
In the FX the result can be destroyed main ballbearing because of the wrong position of the ballbearing in the crankcase, too far afterwards after overheating and cooling down after that

About the rich midrange David, can that have to do with the normally uncontrolled (and too high?) tank pressure that is used mostly or a too high Perry pump pressure? Because I do not have problems with that, also not with my MVVS 10 cc 0.60 and MVVS 7,5 0.45.

With pressure control the inlet pressure of the fuel to the carb, after the regulator is very low, so the carb has to “suck” the fuel out of the regulator in a situation you can compare with “no tank pressure”.
So when you have a problem with a rich midrange, what happens when adjust the carb with NO tankpressure and NO pump ? Of course not to fly with it, only to see the result of adjusting on the midrange.
When it is oké than maybe a Cline regulator you can use.

Cees